A fire on an April night in West Allis revealed a heartbreaking reality for a community. Three children died in a house fire.

The mother of the children, Angelica Belen, 24, pleaded guilty to three felony counts of child neglect resulting in death.

Firefighters said the children were found alone in an upstairs bedroom, and the door to the room appeared to be locked with a deadbolt.

"How often does this happen where there's a death involved where CPS didn't do anything, where CPS knew what was going on in the home and did nothing," said Belen's sister, who asked only to be identified as Leah.

Two weeks ago, Belen's sisters said they wanted answers and wanted to know, after several visits from the Bureau of Child Welfare, who let Belen keep her children and why.

A government review released Thursday showed at least nine contacts with the children and their mother in the months and years leading up to the fatal fire.

The report found the bureau was:

"Not in compliance ... in areas of screening decisions and identification of impending danger threats."

"Not in compliance in the areas of time frame for response, required interview contacts, review of child protective services history."

"Not in compliance in the areas of reporting a new referral."

Because of what happened in the fatal fire, the bureau said it completely redesigned its intensive in-home services program in June.

The report also said all of Milwaukee's child welfare staff will receive further training.

The head of the Milwaukee bureau didn't want to be interviewed on camera Thursday night. Calls to state officials also were not returned.

CHANGES ARE BEING MADE IN THE BUREAU OF MILWAUKEE CHILD WELFARE TONIGHT AFTER THE FIERY DEATHS OF THREE YOUNG CHILDREN. AS WISN 12 NEWS' TERRY SATER REPORTS YOUNG CHILDREN. AS WISN 12 NEWS' TERRY SATER REPORTS THE CHANGES COME THE SAME DAY THE CHILDREN'S MOTHER PLEAD GUILTY IN THEIR DEATHS. A FIRE ON AN APRIL NIGHT IN WEST ALLIS REVEALED A HEARTBREAKING REALITY FOR A COMMUNITY - THREE CHILDREN HAD DIED IN A HOUSE FIRE. AND TODAY.. THEIR MOTHER 24 YEAR OLD ANGELICA BELEN PLED GUILTY TO THREE FELONY COUNTS OF CHILD NEGLECT RESULTING IN DEATH. TERRY SATER ON CAMERA - THE MEMORIALS FOR THE THREE DEAD CHILDREN ARE STILL HERE ALTHOUGH SOME ARE TATTERED AND FADED. BUT THE REPORT THAT WAS JUST RELEASED, I'VE BEEN READING OVER AND OVER AND THE MEMORIES OF WHAT HAPPENED HERE ARE FRESHER THAN EVER. FIRE FIGHTERS SAY THEY FOUND THE THREE DEAD CHILDREN IN AN UPSTAIRS BEDROOM. THE DOOR APPEARED TO BE DEADBOLTED. THEY'D BEEN LEFT ALONE. HOW OFTEN DOES THIS HAPPEN WHERE THERE'S A DEATH INVOLVED 17 WHERE CPS DIDN'T DO ANYTHING, WHERE CPS KNEW WHAT WAS GOING ON IN THE HOME AND DID NOTHING 24 AND THAT NOTHING IS WHAT NEEDS TO CHANGE 24 JUST TWO WEEKS AGO BELEN'S SISTERS TOLD 12 NEWS...THEY WANTED ANSWERS--- THEY WANTED TO KNOW AFTER SEVERAL VISISTS FROM THE BUREAU OF CHILD WELFARE--- WHO LET BELEN KEEP HER KIDS AND WHY. THURSDAY THE GOVERNMENT REVIEW RELEASED ITS REPORT--- SHOWING AT LEAST NINE CONTACTS WITH THE CHILDREN AND THEIR MOTHER IN THE MONTHS AND YEARS LEADING UP TO THE DEADLY FIRE. THE REPORT FINDS THE BUREAU WAS NOT IN COMPLIANCE... IN AREAS OF SCREENING DECISIONS AND IDENTIFICATION OF IMPENDING DANGER THREATS. NOT IN COMPLIANCE IN THE AREAS OF TIMEFRAME FOR RESPONSE, REQUIRED INTERVIEW CONTACTS, REVIEW OF CHILD PROTECTIVE SERVICES HISTORY. NOT IN COMPLIANCE IN THE AREAS OF REPORTING A NEW REFERRAL. BECAUSE OF WHAT HAPPENED HERE--- IN JUNE THE BUREAU SAYS ITS COMPLETELY REDESIGNED ITS INTENSIVE IN-HOME SERVICES PROGRAM--- IN WEST ALLIS TERRY SATER WISN 12 NEWS. THE REPORT ALSO SAYS THE REPORT ALSO SAYS ALL OF MILWAUKEE CHILD WELFARE STAFF WILL RECEIVE FURTHER TRAINING. THE HEAD OF THE MILWAUKEE BUREAU DIDN'T WANT TO GO ON CAMERA TONIGHT. WE ALSO REACHED OUT TO THE STATE -- THEY